Have just got my son a beta rev 80 for xmas and have seen another 80 described fitted with a montesa rear mudguard. Does anyone know what montesa mudguard fits as i have noticed the beta one is not very flexible and dont want to buy a graphics kit to find i need more graphics for the next mudguard. Any help would be appreciated.

Stay with the beta guard, cut off the leading edges from the rear of the guard,upto the first fixing ,this makes the guard more flexible,then replace the fixing bolts with cable ties. The cable ties break following a big off,and save the guard from snapping.